ENTRANCE TEST – 2015 | Multiple Questions and Answers

36.	Standard enthalpy of combustion of graphite at 25 oC is –393.51 kJ mol-1 and that of diamond is –395.41 kJ mol-1. The enthalpy change for graphite is:

	A.	– 1.91
	B.	+2.1
	C.	–2.1
	D.	+1.91

37.	10.0 grams of glucose are dissolved in water to make 100 cm3 of its solution, its molarity is:

	A.	0.55
	B.	0.1
	C.	10
	D.	1

38.	Given solution contains 16.0 g of CH3OH, 92.0 g of C2H5OH and 36 g of water. Which statement about mole fraction of the components is true?

	A.	Mole fraction of CH3OH is highest among all
	B.	Mole fraction of C2H5OH and H2O is the same
	C.	Mole fraction of CH3OH and C2H5OH is same components
	D.	Mole fraction of H2O is the lowest among all